Home / 1,939.21-2,675.77-1,152.97

Finding the Fourth Proportional to 1,939.21, 2,675.77 and 1,152.97

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Solution

The fourth proportional to 1,939.21, 2,675.77 and 1,152.97 is: 1,590.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.21 : 2,675.77 = 1,152.97 : x
  2. Step 2: Convert to fraction form
    1,939.21/2,675.77 = 1,152.97/x
  3. Step 3: Cross multiply
    1,939.21x = 2,675.77 × 1,152.97
  4. Step 4: Simplify right side
    1,939.21x = 3,085,082.54
  5. Step 5: Solve for x
    x = 3,085,082.54/1,939.21
  6. Step 6: Final answer
    x = 1,590.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.